Edge Enhancement and Edge-Enhanced Correlation with Photorefractive Polymers
We demonstrate a simple all-optical realization of programmable edge enhancement and edge-enhanced correlation using novel photorefractive polymers. We show that the higher non-Bragg order in a two-beam coupling scheme contains the edge enhancement of the object when placed in the path of one of the incident beams. Also, this arrangement provides a scheme for writing joint transform correlation dynamic holograms, which can be read by a third beam. The correlation is edge enhanced, and the correlation peak increases with the applied bias voltage. Numerical results without and with beam fanning are presented. Theoretical predictions are reconciled with experimental results.
Copyright © 2000, Optical Society of America
Optical Society of America
Banerjee, Partha P.; Gad, Esam; Hudson, Tracy; McMillen, Deanna; Abdeldayem, Hossin; Frazier, Donald; and Matsushita, Kenji, "Edge Enhancement and Edge-Enhanced Correlation with Photorefractive Polymers" (2000). Electrical and Computer Engineering Faculty Publications. 269.